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34 Cards in this Set
- Front
- Back
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Scientific Inquiry |
Chapter 1 |
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Observation |
Data collected or measured with the 5 senses
- Objective |
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Inference |
Predictionbased on an observation
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Hypothesis |
Testable prediction
The foundation of an experiment |
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Independent Variable
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The variable that you control or manipulate There can only be one because this is the only way to know what variable is responsible for the outcome
Example: The plant was given special water, does this affect the outcome of plant growth? You must only change the water |
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Dependent Variable |
Changes based on the independent variable - the data you're collecting This is the result, of which depends on the independent variable
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Experimental group |
Thegroup that receive the experimental version of the Individual Variable
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Control group |
The group that doesn't receive the independent variable and does not change Gives a basis for comparison
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Graphing Axis's Independent variable - dependent variable 8 important factors to creating a graph |
IV - X axis DV - Y axis Graph title Axes labels include units Use consistent scale Use majority of the graph No breaks Don't have to start at 0 If there are multiple points, include a key |
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Maximum use of a graph formula |
(Max - Min) / # of boxes = X (Round up to the nearest number. This should be kept to 1, 2, 5, 10, andmultiples of 5) |
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Parts of Atoms |
Chapter 2 |
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Protons
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Protons Positive charge Determines what element the atom is
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Atomic Number
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Number of Protons |
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Neutrons
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No charge Contributes to Atomic mass |
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Electrons
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Negative charge Determines charge |
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Atomic Mass
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protons + neutrons
Found below written element name |
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Atomic number |
number of protons
Found in upper left hand corner |
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Properties of water |
Chapter 3 |
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Covalent Bonding
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Sharing valence electrons |
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Unequal sharing
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Polar Has partial charge |
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Equal sharing
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Non polar |
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Cohesion Water
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Sticking to water
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Adhesion Water
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sticking to other things
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Universal solvent
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Like dissolves like Anything polar or ionic
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High Specific Heat
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Takes lots of energy to change the temperature of water
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Capillary Action
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Why water climbs up straws or is (goes up) absorbed through a paper towel
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Dehydration synthesis
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Removing a water molecule to bond monomers together to form a polymer
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Hydrolysis
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Using water to break apart polymers into monomers
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Macro Molecules |
Chapter 4 |
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Enzymes
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Are proteins that speed up the rate of areaction by lowering it’s activation energy
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Activationenergy
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Energyrequired to start a reaction.
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Temperature
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Usually enzymes will work better as the temperature increases until it reaches an optimum : if the temperature is too high or too low an enzyme may denature
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pH
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Potential hydrogen -A scale that measures the acidity or alkalinity of a substance acids 1-7 water (neutral) 7 bases 7-14
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Concentration
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How pure a substance is
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